QFactoryLoader::QFactoryLoader() looking at '/home/ragnarok/Qt5/5.15.0/gcc_64/plugins/imageformats/libCustomLabel.so'įound metadata in lib /home/ragnarok/Qt5/5.15.0/gcc_64/plugins/imageformats/libCustomLabel.so, metadata= Here is what i got from Qt debug info: QFactoryLoader::QFactoryLoader() checking directory path '/home/ragnarok/Qt5/5.15.0/gcc_64/plugins/imageformats'. So why does information appear in the debug in one plugin folder and not in another? Anyway the plugin's info it shows up in the debug but Qt doesn't load it. According to the Qt documentation the plugin placed in any folder in which Qt searches to load plugins should work. For example if I move the plugin from the designer folder to the imageformats folder then Qt detects the plugin and then plugin's information appears in the Qt debug. 'Description' : 'This plugin presents a custom QLabel.',ĭoing some tests I discovered strange workings in Qt. Q_EXPORT_PLUGIN2(CustomLabelPlugin, CustomLabelPlugin) QString CustomLabelPlugin::includeFile() const QString CustomLabelPlugin::domXml() const Return QLatin1String('This is a custom QLabel.') īool CustomLabelPlugin::isContainer() const QString CustomLabelPlugin::whatsThis() const QString CustomLabelPlugin::toolTip() const

Return QIcon(QLatin1String(':/iconos/label.ico')) QWidget *CustomLabelPlugin::createWidget(QWidget *parent) hereīool CustomLabelPlugin::isInitialized() const Void CustomLabelPlugin::initialize(QDesignerFormEditorInterface * /* core */)

Void initialize(QDesignerFormEditorInterface *core) ĬustomLabelPlugin.cpp #include 'CustomLabel.h'ĬustomLabelPlugin::CustomLabelPlugin(QObject *parent)

Q_PLUGIN_METADATA(IID '.QDesignerCustomWidgetInterface' FILE 'CustomLabel.json') Q_INTERFACES(QDesignerCustomWidgetInterface) Target.path = $$/designerĬustomLabelPlugin.h #ifndef CUSTOMLABELPLUGIN_HĬlass CustomLabelPlugin : public QObject, public QDesignerCustomWidgetInterface TARGET = $$qtLibraryTarget(CustomLabelPlugin) Does anyone have ideas how to solve this problem?ĬustomLabel.pro CONFIG += plugin debug_and_release Here is an example of the code I use to make the plugins. I don't know what I'm doing wrong here in order to integrate these kind of plugins. However when I compile another plugin (which is not a widget for the Qt Designer) like the SIGBUILD it appears loaded. I use the QT_DEBUG_PLUGINS and notice that the plugin dosen't appear in the debug info. The plugin compile and install on the Qt Designer's plugin folder without problems but it does not appear loaded in the About Plugins of Qt. I made a Qt Custom Designer Widget using Qt's Wizard.

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